Studies on the propagation of Carob Ceratonia siliqua by stem cuttings [rooting ability of terminal versus basal carob stem cuttings; rooting percentage; average number of roots per rooted cutting; root length].
1992
Al Tury M.H.
Effect of time of collection, and indolebuyric acid (IBA) concentration on the rooting ability of terminal and basal stem cuttings of Carob-Ceratonia siliqua were investigated. The collection dates were October and May 1990 and February 1991. IBA was used at 0, 2000, 4000, 6000 and 8000 ppm. The cutting were rooted in perlite under intermittent mist in a green house. Results showed that the carob cuttings taken during fall (October) did not root. Also, no rooting was obtained without the use of IBA. Best rooting (55%) was obtained using terminal cuttings collected during February with 8000 IBA dipping; however, this do not differ significantly from May collection time, or other IBA concentrations. Terminal cuttings gave better rooting than basal cuttings. Higher average number of roots per rooted cutting (16.63) was obtained from terminal cuttings collected during May and treated with 8000 ppm IBA, while longer roots (5.38cm) were obtained from terminal stem cuttings collected during February at 4000 ppm IBA. There was no significant interactions between all the factors in the experiment.
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